CN102741930A

CN102741930A - Information reproduction device and information reproduction method

Info

Publication number: CN102741930A
Application number: CN2011800080922A
Authority: CN
Inventors: 山本义一; 伊藤基志
Original assignee: Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Holdings Corp
Priority date: 2010-02-04
Filing date: 2011-02-02
Publication date: 2012-10-17
Also published as: WO2011096201A1; US20120300607A1; US8358567B2; JPWO2011096201A1

Abstract

Provided are an information reproduction device and an information reproduction method which enable data reproduction using temporary management information that is specified by concise designation. Temporary management information specifying information is accepted, the most suitable temporary management information is searched for and reproduced from among a plurality of pieces of temporary management information, and data is reproduced using the reproduced temporary management information. Thus, the contents before overwriting of an overwritten file can be acquired.

Description

Information regenerator and information reproduction method

Technical field

Information regenerator that the present invention relates to the information recording carrier that has been suitable for logical over-write (overwrite) is regenerated and information reproduction method, the information recording carrier that has been suitable for logical over-write carried out the information recording/reproducing apparatus and the information recording/reproducing method of record regenerating.

Background technology

In recent years, BD-RE (Blu-ray Disc Rewritable) and BD-R (Blu-ray Disc Recordable) such, jumbo can rewriting type CD, Worm type optical disk obtained popularizing.The BD-R as Worm type optical disk among BD also adopts fault management system, and defect block spare area all and periphery in being arranged at is replaced record, guarantees the reliability of data recording thus.And then, if posting field been has has been accepted data record request, then replace record through non-recorded part to area, realize logical over-write (or virtual overriding).

Logical construct (with reference to non-patent literature 1) at two layers of BD-R shown in Figure 13.Distributed to BD-R: be used for user data area, be used for alternately spare area, the DMA (Disc Management Area) that is used for indicator management information and the TDMA (Temporary Disc Management Area) of the defect block in user data zone.Wherein, TDMA also is called as temporary transient management information areas.

Making dish finish before management information to be recorded to TDMA, when dish is finished, management information is recorded to DMA.

Shown in figure 14, TDMA write afterwards write down a plurality of TDMS (Temporary Disc Management Structure) (with reference to patent documentation 1).Logging mode at dish is under the situation of sequential logging mode (Sequential Recording Mode), comprises TDFL (Temporary Defect List), SRRI (Sequential Recording Range Information) and TDDS (Temporary Disc Definition Structure) among the TDMS.TDFL mainly be used as to dish on the defect list managed of the corresponding graded area of defect area.Mainly comprise among the SRRI be called as SRR (Sequential Recording Range) with the corresponding management information of posting field.The constructing definitions information that comprises the dish of the configuration information of TDFL, SRRI or the capacity of spare area etc. among the TDDS.Wherein, TDMS also is called as temporary transient management information, and TDFL also is called as (temporarily) defect list.

Use Figure 15 that the action of logical over-write is described.If in piece P, override data A ' in piece P, to record the state of data A; Then at the initial piece Q record data A ' of posting field not; And the TDMS that defect list possesses as TDFL write afterwards is recorded in TDMA, wherein defect list appended expression from piece P to the piece Q inlet (entry) of record alternately.Afterwards,, then confirming from piece P to piece Q alternately after the record reconstituting piece Q and obtain data A ' with reference to defect list if piece P is accepted regeneration request.Logical over-write realized in alternately record through having used defect list like this.

Use Figure 16 that following situation is described:, then under the situation that has override file, can't obtain the content before overriding if adopt this logical over-write.In Figure 16, FE (File Entry) is the metadata of the information of the attribute that comprises file, the position of having write down file content, size etc.The physical record content is actual in content recorded on dish, the logical record content be can reference outside the information recording/reproducing apparatus that has reflected logical over-write result content.Be depicted as the state that records File-A and File-B like Figure 16 (a); Shown in Figure 16 (b), use under the situation that File-A ' carried out overriding to File-A; With the content record of File-A ' after posting field not, the FE that uses File-A ' carries out logical over-write to the FE of File-A.Its result, shown in Figure 16 (b), can't be with reference to the FE of File-A outside information recording/reproducing apparatus, the position, the size that have as a result of write down the File-A content become not clear, thereby can't obtain the content of File-A.

Relative with it, the method that obtains the content before overriding under the situation that has override file is disclosed in patent documentation 2.In patent documentation 2, comprise in the formation of recovering DLT (TDFL) address at DDS (TDDS), through being that the source turns back to former DLT (TDFL) and recovers state in the past to recover DLT (TDFL).

Technical literature formerly

Patent documentation

Patent documentation 1: TOHKEMY 2008-282532 communique

Patent documentation 2: TOHKEMY 2006-172528 communique

Non-patent literature

Non-patent literature 1:INFORMATION TECHNOLOGY-Multi-Media Commands-64.15 joint

Summary of the invention

The technical matters that invention will solve

Patent documentation 2 disclosed said methods are for turning back to the method for previous TDMS from certain TDMS.Thereby, for example can't selectivity use useful IDMS, that is: used the past to take out TDMS in the information recording carrier, or use the TDMS etc. that particular block is carried out the tight front of logical over-write from information recording/reproducing apparatus.

The present invention proposes in view of the above problems, and its purpose is to provide a kind of information regenerator and information reproduction method that can come selectivity to use useful TDMS through succinct appointment.

For solving the problems of the technologies described above the technical scheme that adopts

The present invention relates to a kind of information regenerator,, it is characterized in that from Worm type information recording carrier regenerating information,

Said Worm type information recording carrier possesses:

Area is used for user data; And

Temporary transient management information areas is used to write down temporary transient management information,

Said temporary transient management information comprises the relevant record day information of date that is write down with said temporary transient management information,

Said Worm type information recording carrier applicable logic is being override and in said temporary transient management information areas, recording under the situation of a plurality of temporary transient management information said information regenerator

Accept from the outside of said information regenerator and can confirm that the date on date confirms information,

Comprise the up-to-date temporary transient management information among at least one temporary transient management information of record day information from said temporary transient management information areas regeneration; Day information representation of wherein said record and said date confirm that the date shown in the information is consistent or confirm the date before date shown in the information on the said date

Said temporary transient management information according to being regenerated is carried out the data reproduction of said area.

According to certain embodiment, said information regenerator possesses recording portion, and this recording portion is carried out the record to said Worm type information recording carrier; Not in the up-to-date temporary transient management information that in said temporary transient management information areas, writes down in the said temporary transient management information of being regenerated, forbid record said Worm type information recording carrier.

Said Worm type information recording carrier possesses:

Area is used for user data; And

In each piece of said area, write down previous recording address with user data,

Said temporary transient management information contains and comprises the alternately defect list of inlet,

The information of the logical over-write number of times of accepting the information of the address that can confirm logical over-write object piece from the outside of said information regenerator and confirming to review,

Included alternately entering the mouth in the said defect list with reference to the up-to-date temporary transient management information among said a plurality of temporary transient management information; Confirm the alternately purpose plot that said logical over-write object piece is alternately write down; And said alternately purpose plot is made as current block

The previous recording address that regeneration is write down in said current block repeats the piece shown in this previous recording address is made as the processing of new current block with the logical over-write number of times of reviewing, and confirms the current block of target,

Up-to-date temporary transient management information among the search and at least one the temporary transient management information that comprises defect list of regenerating, wherein said defect list comprise that expression replaces the alternately inlet that writes down from said logical over-write object piece to the current block of said target,

The present invention relates to a kind of information reproduction method,, it is characterized in that from Worm type information recording carrier regenerating information,

Said Worm type information recording carrier possesses:

Area is used for user data; And

Said Worm type information recording carrier applicable logic is being override and in said temporary transient management information areas, recording under the situation of a plurality of temporary transient management information, and said information reproduction method comprises:

Accept the date that to confirm the date from the outside of information regenerator and confirm the step of information;

The step that comprises the up-to-date temporary transient management information among at least one temporary transient management information of record day information from said temporary transient management information areas regeneration, wherein said record day information representation and said date confirm that the date shown in the information is consistent or confirm the date before date shown in the information on the said date; And

The step of carrying out the data reproduction of said area according to the said temporary transient management information of being regenerated.

Said Worm type information recording carrier possesses:

Area is used for user data; And

The step of the information of the logical over-write number of times of accepting the information of the address that can confirm logical over-write object piece from the outside of information regenerator and confirming to review;

Included alternately entering the mouth in the said defect list with reference to the up-to-date temporary transient management information among said a plurality of temporary transient management information; Confirm the alternately purpose plot that said logical over-write object piece is alternately write down, and said alternately purpose plot is made as the step of current block;

The previous recording address that regeneration is write down in said current block repeats the piece shown in this previous recording address is made as the processing of new current block with the logical over-write number of times of reviewing, and confirms the step of the current block of target;

The step of the up-to-date temporary transient management information among the search and at least one the temporary transient management information that comprises defect list of regenerating, wherein said defect list comprise that expression replaces the alternately inlet of record to the current block of said target from said logical over-write object piece; And

The invention effect

According to the present invention,, use by temporary transient management information and confirm that the specified temporary transient management information of information carries out data reproduction to the Worm type information recording carrier that has been suitable for logical over-write.Thus, switch the temporary transient management information that to use through succinct appointment to carry out data reproduction, even if also can take out the content before overriding in the file after being written through logical over-write.

At this moment, the temporary transient management information that can selectivity adopts inconsistent sign to be eliminated is confirmed information as temporary transient management information thus and can be specified the number of purge of inconsistent sign.

Perhaps, can selectivity adopt the secondly spendable temporary transient management information when having taken place to change in OPC zone, confirm information as temporary transient management information thus and taking-up number of times that can the appointed information recording medium.

Perhaps, the temporary transient management information when can selectivity adopting the device intrinsic information to take place to change is confirmed information as temporary transient management information and replacing number of times that can the appointed information record regenerator thus.

Perhaps, also can be to adopt up-to-date temporary transient management information among the temporary transient management information on appointed date or the date before this appointed date from the date that temporary transient management information is write down, confirm information as temporary transient management information thus and can the appointed day.

Perhaps; Calculate physical block by alternately inlet included in the temporary transient management information before the logical over-write predetermined number of times through reviewing previous recording address; And can adopt and comprise this alternately up-to-date temporary transient management information of inlet, confirm information as temporary transient management information thus and can specify the address and the logical over-write number of times of logical over-write object piece.

Description of drawings

Fig. 1 is the pie graph of the information regenerator in the expression embodiment of the present invention.

Fig. 2 is the figure of structure of the TDDS of the two layer BD-R of expression in the embodiment of the present invention.

Fig. 3 is the process flow diagram of the action of the information regenerator in the expression embodiment of the present invention.

Fig. 4 is the process flow diagram of the action of the information regenerator in the expression embodiment 1 of the present invention.

Fig. 5 is the process flow diagram of the action of the information regenerator in the expression embodiment 2 of the present invention.

Fig. 6 is the process flow diagram of the action of the information regenerator in the expression embodiment 3 of the present invention.

Fig. 7 is the process flow diagram of the action of the information regenerator in the expression embodiment 4 of the present invention.

Fig. 8 is the process flow diagram of the action of the information regenerator in the expression embodiment 5 of the present invention.

Fig. 9 (a)～(f) is the figure of the example of the Previous Location Address among the expression BD-R.

Figure 10 is the process flow diagram of the action of the information regenerator in the expression embodiment 6 of the present invention.

Figure 11 is the figure of the search example of the temporary transient management information in the expression embodiment 6 of the present invention.

Figure 12 is the figure of the formation of the information recording/reproducing apparatus in the expression embodiment of the present invention.

Figure 13 is the figure of the logical construct of two layers of BD-R of expression.

Figure 14 is the figure of structure of the TDMA of expression BD-R.

It (b) is the routine figure of action that presentation logic overrides that Figure 15 (a) reaches.

Figure 16 (a) and (b) be the figure that overrides example of the file that overrides of expression logic-based.

Embodiment

Below, with reference to accompanying drawing, embodiment of the present invention is described.

Fig. 1 is the block diagram of the information regenerator 100 in the expression embodiment of the present invention.

In Fig. 1, coil motor 102 rotates information recording carrier 101.The data that optical head 103 comes regenerating information recording medium 101 to the recording layer irradiating laser luminous point of information recording carrier 101.Servocontrol portion 104 makes optical head 103 move to the magnetic track of target in the rotating drive of console panel motor 102, carries out the tracking processing of laser spot.105 pairs of control parts of regeneration are undertaken taking out playback of data after the demodulation by optical head 103 detected regenerated signals, and are stored to buffer 106.Systems control division 107 carries out the control of information regenerator 100 integral body.

Information recording carrier 101 is information recording carriers of Worm type, for example is BD-R.Explanation uses BD-R to be used as the situation of information recording carrier in this embodiment.

Part at the structure of the TDDS of two layers of BD-R shown in Fig. 2.

TDDS identifier among Fig. 2 is to represent that this is configured to the identifier of TDDS, can confirm record position current and TDDS in the past through searching for this TDDS identifier.

Inconsistent sign among Fig. 2 is the set whether inscape of the TDMS under this TDDS of expression is in the bit of up-to-date state respectively, representes to be in up-to-date state if bit is eliminated.Example as using inconsistent sign to represent whether to be up-to-date inscape state, TDMS except TDFL, LRA (Last Recorded Address), also has the LRA in SRRI, the SRRI.Before taking out information recording carrier, upgrade TDFL, SRRI etc. as required, to remove the corresponding bit of inconsistent sign from information recording/reproducing apparatus.In addition, the specified bit of inconsistent sign is eliminated and is meant, when the specified bit of included inconsistent sign is " 1 " in certain TDDS, under the situation that TDDS is updated subsequently, as the specified bit of inconsistent sign and write down " 0 ".

Secondly what secondly all OPC zone can use block address to be illustrated in information recording carrier in block address and the 1st layer the OPC that disposes in interior week zone can be used in all OPC zone secondly in the 0th layer among Fig. 2 can use the address.The OPC zone is that the trial that is used for adjusting recording power or wave recording writes employed zone.

Regional block address and the 1st layer of next regional next of the OPC that periphery disposed that can use block address to be illustrated in information recording carrier of periphery OPC zone secondly can used of the 0th layer of periphery OPC among Fig. 2 can be used the address.

Record day among Fig. 2 is the record day information relevant with the date of having write down this TDDS.For example, store the year/moon/day of having write down this TDDS as record day information.In addition, record day information also can further represent to write down the moment of this TDDS.

The intrinsic identifying information of device among Fig. 2 stores and is used for device intrinsic information that the information recording/reproducing apparatus that has write down this TDDS is discerned.

The action of the information regenerator 100 in this embodiment is described with reference to the process flow diagram of Fig. 3.

In step 301, accept from the outside (for example user) of information regenerator 100 and to be used for information that the temporary transient management information (TDMS) that will use is confirmed." the temporary transient management information that will use " is meant the look over so as to check temporary transient management information of target user data (override before user data) of management, through using can the regenerate user data of target of this temporary transient management information.

In step 302, search for the regenerate temporary transient management information of the information that is suitable for most the temporary transient management information of in step 301, accepting is confirmed of temporary transient management information areas (TDMA).

In step 303, carry out the data reproduction of information recording carrier 101 according to the temporary transient management information of regeneration in step 302.

In the explanation of following embodiment, explain the information that the temporary transient management information of in step 301, accepting is confirmed concrete example and with the action of the pairing step 302 of information that each temporary transient management information is confirmed.

In addition, the information recording carrier of establishing in the embodiment possesses area and the temporary transient management information areas (TDMA) that is used for user data.

In addition, establish the information recording carrier applicable logic in the embodiment is override and in temporary transient management information areas (TDMA), records a plurality of temporary transient management information (TDMS), carry out following detailed description.

(embodiment 1)

In embodiment 1 of the present invention, obtain the information that to confirm the number of purge of inconsistent sign from the outside of information regenerator 100, as definite information of the temporary transient management information (TDMS) that will use.

The action of the temporary transient management information of the temporary transient management information area domain search of the information regenerator 100 from embodiment 1 and the target of regenerating is described with reference to the process flow diagram of Fig. 4.

In step 401, the record of the TDMA of search information recording medium 101 terminal location that finishes is to obtain at the finish TDMS of extreme positions record of record.The finish TDMS of terminal location of this record becomes up-to-date TDMS.

In step 402, as variable n, the information of the number of purge that can confirm inconsistent sign that set basis is obtained out from the outside of information regenerator 100 and the number of purge of the inconsistent sign of calculating.The information that can confirm the number of purge of inconsistent sign for example also can be to be the number of purge of the inconsistent sign reviewed of benchmark with up-to-date TDMS.Perhaps; The information that can confirm the number of purge of inconsistent sign also can be expression; At the number of purge of having specified regulation as the number of purge of inconsistent sign and carried out under the situation of search of temporary transient management information, with its last time the number of purge of the regulation of the inconsistent sign of appointment be the information of the increase and decrease number of times that increases and decreases of benchmark.

In step 403, regenerate and obtain previous TDMS by the TDMS of information recording carrier 101 current maintenances.

In step 404,, judge whether specific bit all is eliminated with reference to the inconsistent sign of the included TDDS of the TDMS that in step 403, takes out.If have the bit be not eliminated in the specific bit then turn back to step 403,, specific bit gets into step 405 if all being eliminated.

In step 405, the value of variable n is deducted 1.

In step 406, whether the value of decision variable n greater than 0, if greater than 0 then turn back to step 403, if be 0 then end process.

Information according to the TDMS that when above step finishes, is kept is carried out the regeneration of information recording carrier 101, can use the data reproduction of the temporary transient management information (TDMS) of the time point that the specific bit of inconsistent sign is eliminated after reviewing predetermined number of times thus.

In addition; If be eliminated, then also can the number of purge of the specific bit of inconsistent sign be regarded as to confirm the information of the number of times that information recording carrier is removed from information recording/reproducing apparatus in information recording carrier specific bit of inconsistent sign when information recording/reproducing apparatus is removed.

As more than; Information regenerator of this embodiment and information reproduction method; Accept the temporary transient management information that is used for the specific temporary transient management information among a plurality of temporary transient management information is selected from the outside of information regenerator and confirm information; Search and regeneration are confirmed the temporary transient management information that information conforms to temporary transient management information among a plurality of temporary transient management information, and carry out the data reproduction of area according to the temporary transient management information of being regenerated.

At this moment, temporary transient management information comprises the information relevant with the taking-up number of times of Worm type information recording carrier.In addition, temporary transient management information confirms that information is to confirm the information of the taking-up number of times of Worm type information recording carrier.

The taking-up number of times that thus, can use the Worm type information recording carrier is the data reproduction of the temporary transient management information (TDMS) in the stipulated number.

And, in the information regenerator and information reproduction method of this embodiment, be inconsistent sign with taking out the relevant information of number of times.This inconsistent sign is to be included in the bit of the regulation that the Worm type information recording carrier is eliminated in interior information when this information regenerator is removed.In addition, the information that can confirm the taking-up number of times of Worm type information recording carrier is to confirm the information of the number of purge of inconsistent sign.

In a plurality of temporary transient management information, according to begin successively to remove the bit of the regulation of inconsistent sign from up-to-date temporary transient management information to the order of old temporary transient management information.Information regenerator of this embodiment and information reproduction method are selected the temporary transient management information of the number of purge of the inconsistent sign that new search and regeneration obtains according to the information that can confirm the number of purge of inconsistent sign among a plurality of temporary transient management information.Temporary transient management information according to being regenerated is carried out the data reproduction of area.

Thus, can use the data reproduction of the temporary transient management information (TDMS) of the time point that the specific bit of inconsistent sign is eliminated after reviewing predetermined number of times.

(embodiment 2)

In embodiment 2 of the present invention, obtain the information of the change frequency that can confirm the address that secondly can use piece each OPC zone from the outside of information regenerator 100, as definite information of the temporary transient management information (TDMS) that will use.Be used to adjust the OPC zone of the recording power or the wave recording of laser, when each information recording carrier is installed in information recording/reproducing apparatus, little by little consumed.Thereby; Secondly the block address of can using in OPC zone (is being meant the start address of not using among the zone under the situation of using the OPC zone according to the mode of address ascending order; Be meant the final address of not using among the zone under the situation in OPC zone using according to the mode of address descending) change frequency and information recording carrier consistent from the number of times that information recording/reproducing apparatus is removed, and can be regarded as confirming the information of the number of times that information recording carrier is removed from information recording/reproducing apparatus.

The action of the temporary transient management information of the temporary transient management information area domain search of the information regenerator 100 from embodiment 2 and the target of regenerating is described with reference to the process flow diagram of Fig. 5.

In step 501, the record of the TDMA of search information recording medium 101 terminal location that finishes, and obtain at the finish TDMS of extreme positions record of record.The finish TDMS of terminal location of this record becomes up-to-date TDMS.

In step 502,, set the change frequency that secondly can use block address in each OPC zone as variable n.The change frequency that sets be according to that obtain out from the outside of information regenerator 100, that can confirm each OPC zone kind next can use the information of the change frequency of block address to calculate.Can confirm that secondly can use the information of the change frequency of block address for example can be the change frequency of reviewing as benchmark with up-to-date TDMS that secondly can use block address.Perhaps; Can confirm secondly can use the information of the change frequency of block address also can be; Having specified the change frequency of regulation using the change frequency of block address as next and carried out under the situation of search of temporary transient management information, is the fluctuation number that benchmark increases and decreases with the change frequency of the regulation of appointment last time.

In step 503, to each the OPC zone that comprises among the TDMS that is kept, the temporary transient value that secondly can use block address of preserving.

In step 504, regenerate and obtain previous TDMS by the TDMS of information recording carrier 101 current maintenances.

In step 505, judge that regional next of each OPC of TDDS included among the TDMS that in step 504, obtains out can use block address whether consistent with temporary transient value of preserving in step 503.If it is unanimities then turn back to step 503 all, if inconsistent then get into step 506.

In step 506, the value of variable n is deducted 1.

In step 507, whether the value of decision variable n greater than 0, if greater than 0 then turn back to step 503, if be 0 then end process.

Information according to the TDMS that in above step end, is kept is carried out the regeneration of information recording carrier 101, can use the block address of secondly can using in each OPC zone to change the data reproduction of predetermined number of times temporary transient management information (TDMS) before thus.

Embodiment 2 is installed in the information recording/reproducing apparatus under the situation of using the OPC zone in order to adjust recording power or wave recording effectively performance function at information recording carrier; Each OPC zone secondly can use the change frequency of block address and information recording carrier consistent from the number of times that information recording/reproducing apparatus is removed, and can be regarded as confirming the information of the number of times that information recording carrier is removed from information recording/reproducing apparatus.

In addition; Even if information recording carrier is installed on information recording/reproducing apparatus do not carry out yet yet to the record in OPC zone situation, from information recording carrier is installed on information recording/reproducing apparatus play taking-up during in repeatedly use the OPC zone and write down each OPC zone across the mistiming to a certain degree next can use under the situation of the different a plurality of temporary transient management information (TDMS) of block address, inconsistent with the taking-up number of times of information recording carrier.

As previously discussed; Information regenerator of this embodiment and information reproduction method; Accept from the outside of information regenerator and to be used to select the temporary transient management information of the specific temporary transient management information among a plurality of temporary transient management information to confirm information; Search and regeneration are confirmed the temporary transient management information that information conforms to temporary transient management information among a plurality of temporary transient management information, and carry out the data reproduction of area according to the temporary transient management information of being regenerated.

Thus, the Worm type information recording carrier of this embodiment possesses the OPC zone more than 1.In addition, the OPC zone is to be installed in the zone of using in order to adjust recording power or wave recording in this information regenerator at the Worm type information recording carrier.

In addition, in the information regenerator and information reproduction method of this embodiment, be next address that can use piece in separately, OPC zone more than 1 with taking out the relevant information of number of times.The address that should secondly can use piece is the information that is updated under the regional situation of OPC and changes having used.In addition, the information that can confirm the taking-up number of times of Worm type information recording carrier be can confirm more than 1 the OPC zone separately in the information of change frequency of the address that secondly can use piece.

In a plurality of temporary transient management information, according to the order that begins from up-to-date temporary transient management information successively to old temporary transient management information, the OPC zone more than 1 separately secondly can use the address of piece to change.Information regenerator of this embodiment and information reproduction method; Selective search and separately the change frequency order that secondly can use the address of piece of OPC zone more than 1 of regenerating among a plurality of temporary transient management information (according to can confirm OPC more than 1 regional separately next can use the information of change frequency of the address of piece to obtain) temporary transient management information, and carry out the data reproduction of said area according to the temporary transient management information of being regenerated.

Thus, can be directed against each OPC zone and use the data reproduction that secondly can use the temporary transient management information (TDMS) of block address before changing predetermined number of times.

(embodiment 3)

In embodiment 3 of the present invention, obtain the information of the replacing number of times that can confirm information recording/reproducing apparatus from the outside of information regenerator 100, as definite information of the temporary transient management information (TDMS) that will use.

The action of the temporary transient management information of the temporary transient management information area domain search of the information regenerator 100 from embodiment 3 and the target of regenerating is described with reference to the process flow diagram of Fig. 6.

In step 601, the record of the TDMA of search information recording medium 101 terminal location that finishes, and obtain at the finish TDMS of extreme positions record of record.The finish TDMS of terminal location of this record becomes up-to-date TDMS.

In step 602, as variable n, the information of the replacing number of times that can confirm information recording/reproducing apparatus that set basis is obtained out from the outside of information regenerator 100 and the replacing number of times of the information recording/reproducing apparatus of calculating.The information that can confirm the replacing number of times of information recording/reproducing apparatus for example can be to be the replacing number of times of the information recording/reproducing apparatus reviewed of benchmark with up-to-date TDMS.Perhaps; The information that can confirm the replacing number of times of information recording/reproducing apparatus also can be to specify the replacing number of times of regulation as the replacing number of times of information recording/reproducing apparatus and carrying out under the situation of search of temporary transient management information, with its last time the replacing number of times of the regulation of specified message record regenerator be the fluctuation number that benchmark increases and decreases.

In step 603, the temporary transient intrinsic identifying information of device of preserving the TDDS that comprises among the TDMS that is kept.

In step 604, regenerate and obtain previous TDMS by the TDMS of information recording carrier 101 current maintenances.

In step 605, whether the intrinsic identifying information of device of the TDDMS that the TDMS that judgement obtains out in step 604 is included is consistent with temporary transient value of preserving in step 603.If it is consistent then turn back to step 603, if inconsistent then get into step 606.

In step 606, the value of variable n is deducted 1.

In step 607, whether the value of decision variable n greater than 0, if greater than 0 then turn back to step 603, if be 0 then end process.

Information according to the TDMS that in above step end, is kept is carried out the regeneration of information recording carrier 101, can use the information recording/reproducing apparatus that information recording carrier is installed to change the data reproduction of predetermined number of times temporary transient management information (TDMS) before thus.

And in the information regenerator and information reproduction method of this embodiment, temporary transient management information comprises the device intrinsic information.This device intrinsic information is to be used for the device that has write down a plurality of temporary transient management information is respectively carried out identified information.Temporary transient in addition management information confirms that information is to confirm the information of the replacing number of times of information recording/reproducing apparatus.

In a plurality of temporary transient management information; According to beginning from up-to-date temporary transient management information successively to install under the situation that intrinsic information taken place to change to the order of old temporary transient management information; The temporary transient management information of information regenerator of this embodiment and the information reproduction method replacing time number (information according to the replacing number of times that can confirm information recording/reproducing apparatus is obtained) of selective search and regenerating information record regenerator among a plurality of temporary transient management information, and carry out the data reproduction of area according to the temporary transient management information of being regenerated.

Thus, can use the information recording/reproducing apparatus that information recording carrier is installed to be replaced the data reproduction of predetermined number of times temporary transient management information (TDMS) before.

(embodiment 4)

In embodiment 4 of the present invention, obtain the information that to confirm the date from the outside of information regenerator 100, as definite information of the temporary transient management information (TDMS) that will use.Can confirm that the information on date can be the concrete year/moon/day.Perhaps, the information that can confirm the date also can be that last time the date of the regulation of appointment was the relative fate of benchmark with it under the situation of having specified date of stipulating and the search of having carried out temporary transient management information.

The action of the temporary transient management information of the temporary transient management information area domain search of the information regenerator 100 from embodiment 4 and the target of regenerating is described with reference to the process flow diagram of Fig. 7.

In step 701, the record of the TDMA of search information recording medium 101 terminal location that finishes, and obtain at the finish TDMS of extreme positions record of record.The finish TDMS of terminal location of this record becomes up-to-date TDMS.

In step 702, whether the record day of judging the TDDS that comprises among the TDMS that is kept is greater than the date as target.At this, the record day of TDDS is meant greater than the date as target and record day as the date after the date of target, is meant less than the date as target the record day of TDDS and writes down day on the date before on date as target.If greater than as date of target then get into step 703, if with consistent as the date of target or before the date that becomes target then end process.

In step 703, regenerate and obtain previous TDMS by the TDMS of information recording carrier 101 current maintenances, turn back to step 702 then.

It is up-to-date temporary transient management information (TDMS) that the TDMS that is kept in finishing in above step can confirm as at the time point as date of target.Carry out the regeneration of information recording carrier 101 according to the information of the TDMS that is kept, can carry out the regeneration of user data of the time point on specified date thus.

And in the information regenerator and information reproduction method of this embodiment, temporary transient management information comprises the relevant record day information of date that is write down with temporary transient management information.In addition, temporary transient management information confirms that information is to confirm the information on date.

At this moment; Information regenerator of this embodiment and information reproduction method; Search and regeneration have the up-to-date temporary transient management information among at least one the temporary transient management information that writes down day information; And carry out the data reproduction of area according to the temporary transient management information of being regenerated, wherein said record day information representation is consistent with the date of obtaining according to the information that can confirm the said date, perhaps on its date before.

More specifically, the Worm type information recording carrier of this embodiment possesses: the temporary transient management information areas that is used for the area of user data and is used to write down temporary transient management information.Temporary transient management information comprises the relevant record day information of date that is write down with temporary transient management information.Information regenerator of this embodiment and information reproduction method Worm type information recording carrier applicable logic being override and in temporary transient management information areas, recording under the situation of a plurality of temporary transient management information, carry out following actions.At first, accept the information that to confirm the date from the outside of information regenerator.Afterwards, search and regeneration have the up-to-date temporary transient management information among at least one the temporary transient management information that writes down day information, wherein said record day information representation or date it before consistent with the date shown in the information that can confirm the date.Afterwards, carry out the data reproduction of area according to the temporary transient management information of being regenerated.

Thus, can use time point on the specified date is the data reproduction of up-to-date temporary transient management information (TDMS).

(embodiment 5)

In embodiment 5 of the present invention, with embodiment 4 likewise, obtain the information that can confirm the date from the outside of information regenerator 100, as definite information of the temporary transient management information (TDMS) that will use.

The action of the temporary transient management information of the temporary transient management information area domain search of the information regenerator 100 from embodiment 5 and the target of regenerating is described with reference to the process flow diagram of Fig. 8.

In step 801, the record of the TDMA of search information recording medium 101 terminal location that finishes, and obtain at the finish TDMS of extreme positions record of record.The finish TDMS of terminal location of this record becomes up-to-date TDMS.

In step 802, as variable m, the position of the initial TDMS that the TDMA of set information recording medium 101 is initial.

In step 803,, be set in the position of the up-to-date TDMS that obtains out in the step 801 as variable n.

In step 804,, set the centre position of m and n as variable i.Under the situation that has produced the remainder, round up.

In step 805, from the position shown in the variable i of information recording carrier 101 regeneration and obtain TDMS.

In step 806, whether the record day of judging the TDDS that comprises among the TDMS that is kept is greater than the date as target.If greater than as date of target then get into step 807, if with consistent as the date of target or before it then get into step 808.

In step 807, as variable n, the position of the previous TDMS of the TDMS that the setting variable i refers to.

In step 808, as variable m, the position of the TDMS that the setting variable i refers to.

In step 809, comparison variable m and variable n, if m＜n then turn back to step 804, if m >=n then get into step 810.

In step 810, from position regeneration that the variable m of information recording carrier 101 refers to and obtain TDMS, end process then.

Information according to the TDMS that is kept in finishing in above step is carried out the regeneration of information recording carrier 101, can use on a specified date thus or among the date before it, is the data reproduction of up-to-date temporary transient management information (TDMS).

The temporary transient management information (TDMS) of 5 pairs of targets of embodiment is carried out binary search, than embodiment 4, and the temporary transient management information (TDMS) of ferret out quickly.

(embodiment 6)

In embodiment 6 of the present invention; Obtain the information of the logical over-write number of times that the information and confirming of the address of the object piece that can confirm logical over-write reviews this piece from the outside of information regenerator 100, as definite information of the temporary transient management information (TDMS) that will use.

Fig. 9 is illustrated in the example of the PLA (Previous Location Address) that has implemented among the BD-R to write down with user data in the logical over-write.

In Fig. 9 (a), record data A0 in piece P0.Piece P0 is not by the state of logical over-write, in piece P0, has write down 0 as PLA.

The figure of the state after the data A1 that has been illustrated among Fig. 9 (a) in piece P0 logical over-write is Fig. 9 (b).In Fig. 9 (b), in the initial piece P1 of posting field not, write down data A1, in temporary transient defect list, appended expression piece P0 to the piece P1 inlet of record alternately.In piece P1, write down the address of the piece P0 that the data of previous P0 are write down as PLA.

And then the figure of the state after in piece P0 logical over-write has been shown as Fig. 9 (c) the data A2 is Fig. 9 (d).In Fig. 9 (d), in the initial piece P2 of posting field not, write down data A2." representing the inlet that piece P0 alternately writes down to piece P1 " of temporary transient defect list is updated to " inlet that expression piece P0 alternately writes down to piece P2 ".In piece P2, write down the address of the piece P1 that the data of previous P0 are write down as PLA.

And then the figure of the state after in piece P0 logical over-write has been shown as Fig. 9 (e) the data A3 is Fig. 9 (f).In Fig. 9 (f), in the initial piece P3 of posting field not, write down data A3, " the expression piece P0 to piece P2 alternately the inlet of record " of temporary transient defect list is updated to " expression piece P0 to piece P3 alternately the inlet of record ".In piece P3, write down the address of the piece P2 that the data of previous P0 are write down as PLA.

Like this, if in BD-R, implemented logical over-write, then in the piece of new alternately destination, write down the address of the piece (P0, P1 or P2) that the data of the piece P0 of logical over-write are up to now write down as PLA.

The action of the temporary transient management information of the temporary transient management information area domain search of the information regenerator 100 from embodiment 6 and the target of regenerating is described with reference to the process flow diagram of Figure 10.

In step 1001, the record of the TDMA of search information recording medium 101 terminal location that finishes, and obtain at the finish TDMS of extreme positions record of record.The finish TDMS of terminal location of this record becomes up-to-date TDMS.

In step 1002, as variable k, the logical over-write number of times that setting will be reviewed.The number of times that sets is to calculate according to the information of the logical over-write number of times of obtaining out from the outside of information regenerator 100, can confirm to review.The information of the logical over-write number of times that will review that can confirm for example also can be to be the logical over-write number of times that benchmark is reviewed with up-to-date TDMS.Perhaps; The information of the logical over-write number of times that can definite will review also can be expression; At the number of times of having specified regulation as the logical over-write number of times that will review and carried out under the situation of search of temporary transient management information, with its last time the number of times of the regulation of the logical over-write that will review of appointment be the information of the increase and decrease number of times that increases and decreases of benchmark.

In step 1003; With reference to the included TDFL of up-to-date TDMS that in step 1001, obtains out; The object piece of obtaining the logical over-write of calculating according to the information of the address of object piece that take out, that can confirm logical over-write from the outside of information regenerator 100 is by the alternately address in purpose plot of record alternately, and setting is to variable p.In addition, as an example of address, enumerate the record logical address of FE (document entry).Can come the instrument of interpretation system according to the file of user's appointment and obtain the logical address of FE.The explanation of this file system is undertaken by the file system driver of principal computer sometimes." can confirm the information of the address of logical over-write object piece " both can be the logical address of FE itself, also can be the file by user's appointment, can also confirm the address in the explanation that the information regenerator side is carried out file system.

In step 1004, will gather R and be made as sky.Wherein, establish set R and be meant the set that block address is had as key element.

In step 1005, pair set R appends the value of variable p.

In step 1006, the value of variable k is deducted 1.

In step 1007, whether the value of decision variable k greater than 0, if greater than 0 then get into step 1008, if be 0 then get into step 1010.

In step 1008, from the piece of the address shown in the variable p, read PLA.

In step 1009, be set in the value of the PLA that reads in the step 1004 once more as variable p, turn back to step 1005 then.

In step 1010, as variable m, the position of the initial TDMS that the TDMA of set information recording medium 101 is initial.

In step 1011,, be set in the position of the up-to-date TDMS that takes out in the step 1001 as variable n.

In step 1012,, set the centre position of m and n as variable i.Under the situation that has produced the remainder, round up.

In step 1013, from the position shown in the variable i of information recording carrier 101 regeneration and obtain TDMS.

In step 1014, judge whether the object piece of expression logical over-write is present in the TDFL that comprises among the TDMS that is kept to the alternately inlet of the piece shown in each key element of set R.If have so alternately inlet then get into step 1015, if do not have alternately inlet then get into step 1016.

In step 1015,, set the position of the previous TDMS of the TDMS that variable i refers to once more as variable n.

In step 1016,, set the position of the TDMS that variable i refers to once more as variable m.

In step 1017, comparison variable m and variable n, if m＜n then turn back to step 1012, if m >=n then get into step 1018.

In step 1018, from position regeneration that the variable m of information recording carrier 101 refers to and obtain TDMS, end process afterwards.

Information according to the TDMS that in above step end, is kept is carried out the regeneration of information recording carrier 101, can use thus to the specified data reproduction of being carried out the specified number of times of logical over-write temporary transient management information (TDMS) before by the piece of logical over-write.

Use Fig. 9 and Figure 11 that the concrete example of the hunting action of the temporary transient management information in the embodiment 6 is described.

As shown in Figure 9 carried out in the logical over-write of piece P0 shown in figure 11 by the TDMS of TDMA record.In Figure 11, piece P0 to piece P1 alternately record during in comprise alternately entering the mouth to piece P1 among the TDMS that write down from piece P0.Likewise, piece P0 to piece P2 alternately record during in comprise the alternately inlet to piece P2 among the TDMS that write down from piece P0, piece P0 to piece P3 alternately record during in comprise from piece P0 among the TDMS that write down and entering the mouth to replacing of piece P3.

If suppose to search for the situation of the previous TDMS that before 2 times, carries out to the logical over-write of piece P0, alternately final state, the i.e. search of record comprise the up-to-date TDMS that alternately enters the mouth to piece P1 from piece P0 to piece P1 then to become piece P0.Process flow diagram according to Figure 10 is implemented this search, gets into if the condition of step 1007 is false among the set R in the step 1010 to comprise P3 and P2.Afterwards, according to the binary search of step 1010～step 1017, search does not exist from piece P0 to the up-to-date TDMS as the inlet of the piece P3 of destination alternately or piece P2.Thus, variable m set shown in the X comprise Figure 11 from the alternately position of the up-to-date TDMS of inlet (Fig. 9 (b)) of piece P0 to piece P1, obtain the TDMS of target according to step 1018.

Shown in above; Information regenerator of this embodiment and information reproduction method; Accept from the outside of information regenerator and to be used to select the temporary transient management information of the specific temporary transient management information among a plurality of temporary transient management information to confirm information; Search and regeneration are confirmed the temporary transient management information that information conforms to temporary transient management information among a plurality of temporary transient management information, and carry out the data reproduction of area according to the temporary transient management information of being regenerated.

And, in this embodiment, in each piece of area, write down previous recording address with user data.

And in the information regenerator and information reproduction method of this embodiment, temporary transient management information comprises defect list.In addition, temporary transient management information confirms that information is to confirm the address of logical over-write object piece and the information of logical over-write number of times.

In Fig. 9 and example shown in Figure 11; Information regenerator of this embodiment and information reproduction method; Defect list with reference to the up-to-date temporary transient management information among a plurality of temporary transient management information; That confirms that logical over-write object piece (P0) replace record replaces purpose plot (P3), and will replace purpose plot (P3) and be made as current block.According to this current block (P3) previous recording address (PLA) of regenerating, repeat the logical over-write number of times that will review as being treated to of new current block (P2), confirm the current block (P1) of target.Search and regeneration exist in defect list from the alternately up-to-date temporary transient management information of inlet of logical over-write object piece (P0) to the current block (P1) of target among a plurality of temporary transient management information, and carry out the data reproduction of said area according to the temporary transient management information of being regenerated.

More specifically, the Worm type information recording carrier of this embodiment possesses: be used for based on the area of user data and the temporary transient management information areas that is used to write down temporary transient management information.At this moment, in each piece of area, write down previous recording address (PLA) with user data.In addition, temporary transient management information contains and comprises the alternately defect list of inlet.

In Fig. 9 and example shown in Figure 11; Information regenerator of this embodiment and information reproduction method; Worm type information recording carrier applicable logic being override and in temporary transient management information areas, recording under the situation of a plurality of temporary transient management information, carry out following actions.At first, accept the information of the logical over-write number of times that the information of the address that can confirm logical over-write object piece (P0) and confirming will review from the outside of information regenerator.Afterwards, included alternately entering the mouth in the defect list with reference to the up-to-date temporary transient management information among a plurality of temporary transient management information confirmed that logical over-write object piece (P0) is replaced the alternately purpose plot (P3) of record, and this piece (P3) is made as current block.Afterwards, the previous recording address (PLA) of regeneration record in current block (P3) repeats the piece (P2) shown in this previous recording address (PLA) is made as the logical over-write number of times that being treated to of new current block will be reviewed, and confirms the current block (P1) of target.Afterwards, among comprising the temporary transient management information of defect list, search for and the up-to-date temporary transient management information of regenerating, wherein said defect list comprises that expression overrides object piece (P0) replaces alternately inlet from record to the current block (P1) of target from presentation logic.Afterwards, carry out the data reproduction of area according to the temporary transient management information of being regenerated.

Thus, can use the data reproduction of the temporary transient management information (TDMS) under the time point of the specified number of times of reviewing.

The embodiment of hereto explaining of the present invention may be implemented in the information recording/reproducing apparatus that has to the writing function of information recording carrier too.

Figure 12 is the block diagram of the information recording/reproducing apparatus 1200 in the expression embodiment of the present invention.

In Figure 12, coil motor 1202 rotates information recording carrier 101.Optical head 1203 conducts are to the irradiating part performance function of the recording layer irradiating laser of information recording carrier 101, and conduct is carried out the record of data and the recording portion and the regeneration portion performance function of regeneration to information recording carrier 101.Servocontrol portion 1204 makes optical head 1203 move to the magnetic track of target in the rotating drive of console panel motor 1202, carries out the tracking processing of laser spot.1205 pairs of control parts of regeneration are undertaken taking out playback of data after the demodulation by optical head 1203 detected regenerated signals, and are stored to buffer 1207.1206 pairs of records that are stored in buffer 1207 of recording control part are modulated with data, and control optical head 1203 is with data recording to information recording carrier 101.Systems control division 1208 carries out the control of information recording/reproducing apparatus 1200 integral body.

The present invention is being implemented under the situation of information recording/reproducing apparatus; If carry out implementing data recording in the data reproduction in the non-up-to-date temporary transient management information (TDMS) of use; Then temporary transient management information (TDMS) produces unmatched possibility and uprises, thus preferably use non-up-to-date temporary transient management information (TDMS) during in forbid record to information recording carrier.

As previously discussed, the information regenerator in the embodiment 1～6 can also further possess the recording portion (1206,1203) that the Worm type information recording carrier is write down.At this moment, can not in the up-to-date temporary transient management information that in temporary transient management information areas, writes down in the temporary transient management information of being regenerated yet, forbid record to the Worm type information recording carrier.Thus, can prevent that temporary transient management information (TDMS) generation from not matching.

More than, specific embodiment of the present invention is illustrated, be conspicuous but other various deformation are routine to those skilled in the art, revise, other application are also included among the present invention.So the present invention is not limited to the specific embodiment mentioned at this, and is only limited technical scheme.

Utilizability on the industry

According to the present invention, in by the information recording carrier after the logical over-write,, among a plurality of temporary transient management information, use the righttest temporary transient management information to carry out data reproduction through succinct appointment.Thus, take out by the state in the past of the file of logical over-write easily.The present invention for example can be applicable to the external memory of principal computer.The present invention is effective especially in the technical field of CD.

Symbol description

100 information regenerators

101 information recording carriers

102 coil motors

103 optical heads

104 servocontrol portions

105 regeneration control parts

106 buffers

107 systems control divisions

1200 information recording/reproducing apparatus

1202 coil motors

1203 optical heads

1204 servocontrol portions

1205 regeneration control parts

1206 recording control parts

1207 buffers

1208 systems control divisions

Claims

1. information regenerator, it is used for from Worm type information recording carrier regenerating information,

Said Worm type information recording carrier possesses:

Area is used for user data; And

2. information regenerator according to claim 1, wherein,

Said information regenerator possesses recording portion, and this recording portion is carried out the record to said Worm type information recording carrier,

Not in the up-to-date temporary transient management information that in said temporary transient management information areas, writes down in the said temporary transient management information of being regenerated, forbid record said Worm type information recording carrier.

3. information regenerator, it is used for from Worm type information recording carrier regenerating information,

Said Worm type information recording carrier possesses:

Area is used for user data; And

4. information regenerator according to claim 3, wherein,

5. information reproduction method, from Worm type information recording carrier regenerating information,

Said Worm type information recording carrier possesses:

Area is used for user data; And

6. information reproduction method, from Worm type information recording carrier regenerating information,

Said Worm type information recording carrier possesses:

Area is used for user data; And